1221000301112 has 16 divisors (see below), whose sum is σ = 2289387816600. Its totient is φ = 610496883360.

The previous prime is 1221000301093. The next prime is 1221000301121. The reversal of 1221000301112 is 2111030001221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2051339 + ... + 2578757.

Almost surely, 2^{1221000301112} is an apocalyptic number.

It is an amenable number.

1221000301112 is a deficient number, since it is larger than the sum of its proper divisors (1068387515488).

1221000301112 is a wasteful number, since it uses less digits than its factorization.

1221000301112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816806 (or 816802 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1221000301112 its reverse (2111030001221), we get a palindrome (3332030302333).

The spelling of 1221000301112 in words is "one trillion, two hundred twenty-one billion, three hundred one thousand, one hundred twelve".